I don't think so, they seem pretty even to me. The outer one may look brighter in the picture because the camera was staring straight into those diodes.

Hi, yeah I appreciate that they can appear to have different intensities when viewed from different angles and they are indeed difficult to photograph but mine are definitely brighter on the outers when viewed from directly behind, I have followed a few others that have factory fitted tails (I'm in the uk) and most do appear brighter, I've been through every possible byte 18 code and the only two that function correctly without errors are a little brighter on the outer lights, I'm trying (unsuccessfully) to establish if this is normal or wether it is my coding or BCM version that is causing it? Is there any chance of a shot of your tails from directly behind please? It would be a great help, thanks.

Yours is NAR so the byte 18 selection won't be the same for me, mine do however appear much more similar in brightness now the cars been washed! I live in a very rural location with narrow roads and a lot of mud not helped by the fact that everything is being dug up to lay fibre optic cables at the moment, its very hard to keep the car clean! The inners and outers are still a bit different though, I've found this picture of another members car and their tails appear exactly as mine do so I've come to the conclusion they may all be like this,